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| author | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2013-10-08 08:43:00 -0700 |
|---|---|---|
| committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2013-10-08 08:43:00 -0700 |
| commit | e3c55d406bd8df1a878546002c93db90c42be10c (patch) | |
| tree | efb0ba2707c95fd7166cf1b76887c43c977e37dd /sound/usb/endpoint.c | |
| parent | 4d6e482675f13e33599fc3d18fc723959be0a9b6 (diff) | |
| parent | d0e639c9e06d44e713170031fe05fb60ebe680af (diff) | |
Merge tag 'v3.12-rc4' into next
Merge with mainline to bring in changes to input subsystem that were
committed through other trees.
Diffstat (limited to 'sound/usb/endpoint.c')
| -rw-r--r-- | sound/usb/endpoint.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/sound/usb/endpoint.c b/sound/usb/endpoint.c index 659950e5b94..93e970f2b3c 100644 --- a/sound/usb/endpoint.c +++ b/sound/usb/endpoint.c @@ -418,6 +418,9 @@ struct snd_usb_endpoint *snd_usb_add_endpoint(struct snd_usb_audio *chip, struct snd_usb_endpoint *ep; int is_playback = direction == SNDRV_PCM_STREAM_PLAYBACK; + if (WARN_ON(!alts)) + return NULL; + mutex_lock(&chip->mutex); list_for_each_entry(ep, &chip->ep_list, list) { |